Table 2. Age- and site-adjusted relative rates of positive cultures by year, US-affiliated Pacific Islands, August 2007–December 2011.

Bacteria and year	No. patients screened	Positive cultures, %	Adjusted relative rates (95% CI)*	p value
Nontuberculous mycobacteria
2007†	595	0.53	1 (referent)
2008	996	3.31	7.53 (3.20–17.71)	<0.001
2009	1,224	5.99	14.22 (6.24–32.36)	<0.001
2010	1,556	6.37	19.48 (8.62–44.05)	<0.001
2011	1,436	11.32	29.04 (12.89–65.41)	<0.001
Mycobacterium tuberculosis
2007†	595	11.54	1 (referent)
2008	996	13.71	1.40 (1.15–1.69)	0.001
2009	1,224	12.41	1.14 (0.95–1.36)	0.17
2010	1,556	12.36	1.05 (0.88–1.25)	0.60
2011	1,436	11.67	1.07 (0.89–1.28)	0.45

*Adjusted for age and geographic sites.
†August–December 2007.